- Visualizza Nuovi Contenuti
- Nikonland
- Sezioni
- Test
- Guide agli acquisti
- Indice Articoli
- Blog
- Forum
-
Fotografie
- Novità dalle Gallerie Fotografiche di Nikonland
- Una foto soltanto : Consigli & Critiche
- Ultime Immagini Caricate
- Ultimi Commenti
- _____________________________
- Contest e occasioni speciali di Nikonland
- Natura
- Fiori
- Ritratto
- Nudo
- Street
- Motori (auto e moto)
- Paesaggi e Panorami
- Architetture
- Viaggi e reportage di viaggio
- Sport (no motori)
- Vendo e Compro
- Downloads
- Altro
Benvenuti su Nikonland Questo sito è indipendente, è autofinanziato, non promuove e non raccoglie pubblicità. Non è collegato con Nikon, Nital o le loro sussidiarie
Nikonland non è una rivista periodica e non è quindi sottoposta alla normativa vigente
Ultimi Test
-
Panasonic Lumix DC- GH5: changing photography
Max Aquila - gen 04 2018 17:26
-
Sony Vario Sonnar 2,8/24-70 ZA SSM II: lo Zeiss...
Max Aquila - ago 08 2017 10:39
-
Nikon 24-70mm F2.8E VR (test/prova)
Lieve - ago 02 2017 16:25
-
Nikon D7500 o Nikon D500 : quale scegliere ? (g...
Lieve - ago 01 2017 12:38
-
Nikon D7500 : io non ho paura ! (test/prova)
Lieve - ago 01 2017 13:59
Altri Contributi
-
[libro Nikonland centenario] Il Terzo Occhio
Alberto Coppola - ago 17 2017 15:43
-
[reportage] Non è più strano... il Tai Chi Chuan nei Parchi a Milano.
Silvio Renesto - ago 05 2017 13:16
-
100 anni di Nikon il mito intramontabile
Roby C - ago 04 2017 14:49
-
01-09-2017 - Pravo dopo quarant'anni cambia sede
Roby C - ago 02 2017 17:08
-
31 luglio 1954... e uno che diverrà un famoso nikonista...
Roby C - lug 31 2017 18:48
-
la Vera Storia della Riunione del 29 Luglio...
Roby C - lug 30 2017 22:46
-
Sardegna - Sud Est
cris7 - lug 24 2017 19:27
-
Avignone - Il festival off
Massimo Vignoli - lug 18 2017 21:59
-
[editoriale] Garanzia cinqueminuti...
Max Aquila - lug 12 2017 12:21
-
[motori] Monza Historic
Giannantonio - lug 06 2017 13:39
-
[libro Nikonland centenario] だいすきニコン (daisuki Nikon)
Alberto73 - lug 04 2017 21:52
-
[manifestazioni] TRATTA 29 giugno 2017
tommowok - giu 30 2017 13:23
-
[luoghi] i laghi del Trentino
Alberto73 - giu 29 2017 21:13
-
[reportage] Tre Torri
Giannantonio - giu 28 2017 15:46
-
[Nikonland libro Centenario] come da tag
Valerio Brùstia - giu 26 2017 00:06
In evidenza
-
Le Nikon del 2017
Lieve - feb 08 2017 08:36
-
16 ottobre - 2006-2016 : dieci anni della nostr...
Lieve - ott 16 2016 06:03
-
La Stampa in Bianco e Nero
Spinoza - mag 19 2016 19:55
-
Nikon D5 : semper fidelis (test/prova)
Lieve - ott 30 2016 17:17
-
La nascita di Nikon (Nippon Kogaku) e la Marina...
Lieve - mar 04 2015 11:11
-
Nikon D810 : la terra promessa (test/prova)
Lieve - mar 10 2015 13:50
-
Il fascino intramontabile delle foto stampate
Lieve - mag 22 2014 09:23
-
Calibrare e Profilare il monitor. Guida pratica
Spinoza - mag 13 2014 12:57
Ultime News
-
25 luglio 2017 : fine della ricreazione
Lieve - lug 28 2017 11:02
-
La Nikon D850 ha un mirino ibrido ?
Lieve - lug 27 2017 05:40
-
Importante aggiornamento firmware per la Nikon...
Lieve - lug 12 2017 07:50
-
Nuovo Nikon AF-P 70-300mm F4.5-5.6E VR (FX)
Lieve - lug 11 2017 07:28
-
New Old Camera : servizio 'demo' e Meet...
Lieve - giu 12 2017 07:41
-
Nuovo Nikon 10-20mm F4.5-5.6 VR
Lieve - lug 07 2017 16:49
-
Nuovo Nikon 8-15mm F3.5-4.5E Fisheye
Lieve - mag 31 2017 07:23
-
Nuovo Nikon 28mm F1.4E
Lieve - mag 31 2017 07:36
-
Fotografia, messaggi, il tempo in cui viviamo.
Lieve - giu 25 2017 05:35
-
Il dado è tratto. Sarà il 2018 l'anno mirro...
Lieve - lug 12 2017 07:15
0
Sigma 105mm f2.8 Macro OS ... in macro (test/review)
ago 29 2015 19:20 |
Silvio Renesto
in International
105mm macro Sigma
here on Nikonland there is an article by Mauro Maratta dealing with this lens used for portrait and general photography.
I'll try to avoid as much as possible repetitions (even if some will be unavoidable), and will describe mainly my user impressions in macrophotography.
Build and Handling.
Since I own and use for my work the 105mm f2.8 micro-nikkor AfS G VR, it becomes obvious for me to make some comparison.
The lens barrell of the Sigma is somewhat narrower and longer than that of the Nikon, as already written by Mauro. In the Sigma the focus ring is also slightly narrower, and the lens gives the feel to be lighter, and perhaps a tad more fragile.
The focus ring rotates in the opposite way with respect to the Nikon, it's a little odd, but easy to get quickly used to.
There are many similarities between the two lenses: same filter thread (62mm) both are IF (internal focus, that is the lens barrel does not extend at close distances) which is a very good thing.
Years ago I tried the previous version of the Sigma 105mm f2.8 macro, named EX, the one with
that hideous, brittle, coating.
I found it more than satisfactory for the sharpness, but awkward in use due to the exxaggerated extension of the barrell at close focus; where it nearly doubled its length (the same occurred in the coeval version of the 90mm f2.8 Tamron). This extension reduced greatly the working distance (the distance between the subject and the front element of the lens) which is important to manage lightings, and above all, to avoid scaring living critters that might fly away (or conversely sting, bite, chew, suck your blood and all other nasty habits that the fearsome evolutionary fantasy of nature gave to Invertebrates).
The external coating is that of new Sigma generation, it is black, elegant and smooth, pleasant to touch and incredibly better than the gritty, britty, self-peeling EX coating of the previous version.
Even if the focusing ring is narrower than that of the 105 micro-nikkor VR it is wide enough, is well damped and fully usable for precision manual focusing, an important feature for macrophotography.
The sample of the 105 Sigma OS I tried ad a distinctly stiffer focusing ring with respect to my 105mm f2.8 micro-nikkor AfS G, but in practical use there were no differences, perhaps I felt even more comfortable with the Sigma.
As usual with new Sigma long lenses, the 105 has two hoods, one to be used with full frame cameras and the other to be added when the lens is mounted on APS-C cameras.
I used an APS-C camera (nikon D7100) but put on only the FF-hood, which is much less cumbersome than that of the 105 nikon VR. Perhaps in strong lateral lighting it may be less effective than that of the nikkor, and perhaps in that case it may be advsable to put on the APS_C-hood.
The throw of the focusing ring is shorter than that of the NIkonwhere you go from 3m to infinite whit the same spin amount that in the Sigma brings from 2m to infinite. The focus distance window is wide and markings are well visible: as in any macro worth the name, reproduction ratio ad various distances is reported along with distance scale in feet and meters.
An important difference between the two lenses is in the distance selectors. Nikon has two options: full, and from 50cm to infinite. The Sigma has three: 31-45cm. 45cm-infinite, and obviously full.
The 45/50cm-infinite option, shared by both lenses is useful when you want to use the lens as a normal short tele e.g. for portraits; greatly increasing the focusing speed. The 31-45cm option, offered only by the Sigma is aimed to macrophotographrs, because it may avoid bothersome hunting of the autofocus in close ups, especially if the background is messy, intricate, like among bushes and tall grasses.
Focusing distances are practically the same for the Sigma and the Nikon at all reproduction ratios of interest for macrophotography. Minimum focusing distance at 1:1 is something more than 31 cm for the Sigma and nearly 31cm for the nikon; at 1:2 focusing distance is 40cm for both lenses, and so on.
The same applies to reduction of actual focal length at shorter distances, both lenses have an actual focal length of 77mm at minimum focusing distance.
The 105mm f4 micro nikkor Ai I added for ...pure affection is not IF, thus it does not reduce its focal length, but its barrel extends significantly and to reach 1:1 you have to add the PN11 extension tube, which is 5,2 cm long, thus at the end, the working distance (that is what really counts) isn't any better for the old Ai micro.
Performance
The autofocus of the Sigma in full mode isn't very fast, but adequate for this kind of lenses. Image stabilization works very well at normal distances
Technical data and overall description of the 105mm f2.8 Sigma Macro OS can be found in many sites and also I'll try to avoid as much as possible repetitions (even if some will be unavoidable), and will describe mainly my user impressions in macrophotography.
Build and Handling.
Since I own and use for my work the 105mm f2.8 micro-nikkor AfS G VR, it becomes obvious for me to make some comparison.
The lens barrell of the Sigma is somewhat narrower and longer than that of the Nikon, as already written by Mauro. In the Sigma the focus ring is also slightly narrower, and the lens gives the feel to be lighter, and perhaps a tad more fragile.
The focus ring rotates in the opposite way with respect to the Nikon, it's a little odd, but easy to get quickly used to.
There are many similarities between the two lenses: same filter thread (62mm) both are IF (internal focus, that is the lens barrel does not extend at close distances) which is a very good thing.
Years ago I tried the previous version of the Sigma 105mm f2.8 macro, named EX, the one with
that hideous, brittle, coating.
I found it more than satisfactory for the sharpness, but awkward in use due to the exxaggerated extension of the barrell at close focus; where it nearly doubled its length (the same occurred in the coeval version of the 90mm f2.8 Tamron). This extension reduced greatly the working distance (the distance between the subject and the front element of the lens) which is important to manage lightings, and above all, to avoid scaring living critters that might fly away (or conversely sting, bite, chew, suck your blood and all other nasty habits that the fearsome evolutionary fantasy of nature gave to Invertebrates).
The external coating is that of new Sigma generation, it is black, elegant and smooth, pleasant to touch and incredibly better than the gritty, britty, self-peeling EX coating of the previous version.
Even if the focusing ring is narrower than that of the 105 micro-nikkor VR it is wide enough, is well damped and fully usable for precision manual focusing, an important feature for macrophotography.
The sample of the 105 Sigma OS I tried ad a distinctly stiffer focusing ring with respect to my 105mm f2.8 micro-nikkor AfS G, but in practical use there were no differences, perhaps I felt even more comfortable with the Sigma.
As usual with new Sigma long lenses, the 105 has two hoods, one to be used with full frame cameras and the other to be added when the lens is mounted on APS-C cameras.
I used an APS-C camera (nikon D7100) but put on only the FF-hood, which is much less cumbersome than that of the 105 nikon VR. Perhaps in strong lateral lighting it may be less effective than that of the nikkor, and perhaps in that case it may be advsable to put on the APS_C-hood.
The throw of the focusing ring is shorter than that of the NIkonwhere you go from 3m to infinite whit the same spin amount that in the Sigma brings from 2m to infinite. The focus distance window is wide and markings are well visible: as in any macro worth the name, reproduction ratio ad various distances is reported along with distance scale in feet and meters.
An important difference between the two lenses is in the distance selectors. Nikon has two options: full, and from 50cm to infinite. The Sigma has three: 31-45cm. 45cm-infinite, and obviously full.
The 45/50cm-infinite option, shared by both lenses is useful when you want to use the lens as a normal short tele e.g. for portraits; greatly increasing the focusing speed. The 31-45cm option, offered only by the Sigma is aimed to macrophotographrs, because it may avoid bothersome hunting of the autofocus in close ups, especially if the background is messy, intricate, like among bushes and tall grasses.
Focusing distances are practically the same for the Sigma and the Nikon at all reproduction ratios of interest for macrophotography. Minimum focusing distance at 1:1 is something more than 31 cm for the Sigma and nearly 31cm for the nikon; at 1:2 focusing distance is 40cm for both lenses, and so on.
The same applies to reduction of actual focal length at shorter distances, both lenses have an actual focal length of 77mm at minimum focusing distance.
The 105 Sigma is somewhat longer than the Nikkor, but the slight difference in minimum focusing distance compensate the slight disadvantage, so that the working distance is roughly the same for the two lenses: about 14cm for the Sigma nearly 14,5cm for the Nikon.
The 105mm f4 micro nikkor Ai I added for ...pure affection is not IF, thus it does not reduce its focal length, but its barrel extends significantly and to reach 1:1 you have to add the PN11 extension tube, which is 5,2 cm long, thus at the end, the working distance (that is what really counts) isn't any better for the old Ai micro.
Performance
The autofocus of the Sigma in full mode isn't very fast, but adequate for this kind of lenses. Image stabilization works very well at normal distances
A sleepy Vincent indulges in posing to test image stabilization 1/20s hand held (or better leaning on elbows lying the floor)
Crop 100%
its effectiveness decreases at close distances becoming nearly useless at 1:1, but it is a common feature of all macro lenses.
Test:
Yes
0 user(s) are online (in the past 15 minutes)
0 utenti, 0 ospiti, 0 utenti anonimi
0 Comments